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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [linkr.c] - Blame information for rev 1774

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/* Reentrant versions of file system calls.  These implementations
   just call the usual system calls.  */
 
#include <reent.h>
#include <unistd.h>
#include <_syslist.h>
 
/* Some targets provides their own versions of these functions.  Those
   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
 
#ifdef _REENT_ONLY
#ifndef REENTRANT_SYSCALLS_PROVIDED
#define REENTRANT_SYSCALLS_PROVIDED
#endif
#endif
 
#ifdef REENTRANT_SYSCALLS_PROVIDED
 
int _dummy_link_syscalls = 1;
 
#else
 
/* We use the errno variable used by the system dependent layer.  */
#undef errno
extern int errno;
 
/*
FUNCTION
        <<_link_r>>---Reentrant version of link
 
INDEX
        _link_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _link_r(struct _reent *<[ptr]>,
                    const char *<[old]>, const char *<[new]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _link_r(<[ptr]>, <[old]>, <[new]>)
        struct _reent *<[ptr]>;
        char *<[old]>;
        char *<[new]>;
 
DESCRIPTION
        This is a reentrant version of <<link>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_link_r (ptr, old, new)
     struct _reent *ptr;
     _CONST char *old;
     _CONST char *new;
{
  int ret;
 
  errno = 0;
  if ((ret = _link (old, new)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
/*
FUNCTION
        <<_unlink_r>>---Reentrant version of unlink
 
INDEX
        _unlink_r
 
ANSI_SYNOPSIS
        #include <reent.h>
        int _unlink_r(struct _reent *<[ptr]>, const char *<[file]>);
 
TRAD_SYNOPSIS
        #include <reent.h>
        int _unlink_r(<[ptr]>, <[file]>)
        struct _reent *<[ptr]>;
        char *<[file]>;
 
DESCRIPTION
        This is a reentrant version of <<unlink>>.  It
        takes a pointer to the global data block, which holds
        <<errno>>.
*/
 
int
_unlink_r (ptr, file)
     struct _reent *ptr;
     _CONST char *file;
{
  int ret;
 
  errno = 0;
  if ((ret = _unlink (file)) == -1 && errno != 0)
    ptr->_errno = errno;
  return ret;
}
 
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */

Line No.	Rev	Author	Line
1	39	lampret	`/* Reentrant versions of file system calls. These implementations`
2			`just call the usual system calls. */`
3
4			`#include <reent.h>`
5			`#include <unistd.h>`
6			`#include <_syslist.h>`
7
8			`/* Some targets provides their own versions of these functions. Those`
9			`targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */`
10
11			`#ifdef _REENT_ONLY`
12			`#ifndef REENTRANT_SYSCALLS_PROVIDED`
13			`#define REENTRANT_SYSCALLS_PROVIDED`
14			`#endif`
15			`#endif`
16
17			`#ifdef REENTRANT_SYSCALLS_PROVIDED`
18
19			`int _dummy_link_syscalls = 1;`
20
21			`#else`
22
23			`/* We use the errno variable used by the system dependent layer. */`
24			`#undef errno`
25			`extern int errno;`
26
27			`/*`
28			`FUNCTION`
29			`<<_link_r>>---Reentrant version of link`
30
31			`INDEX`
32			`_link_r`
33
34			`ANSI_SYNOPSIS`
35			`#include <reent.h>`
36			`int _link_r(struct _reent *<[ptr]>,`
37			`const char <[old]>, const char <[new]>);`
38
39			`TRAD_SYNOPSIS`
40			`#include <reent.h>`
41			`int _link_r(<[ptr]>, <[old]>, <[new]>)`
42			`struct _reent *<[ptr]>;`
43			`char *<[old]>;`
44			`char *<[new]>;`
45
46			`DESCRIPTION`
47			`This is a reentrant version of <<link>>. It`
48			`takes a pointer to the global data block, which holds`
49			`<<errno>>.`
50			`*/`
51
52			`int`
53			`_link_r (ptr, old, new)`
54			`struct _reent *ptr;`
55			`_CONST char *old;`
56			`_CONST char *new;`
57			`{`
58			`int ret;`
59
60			`errno = 0;`
61			`if ((ret = _link (old, new)) == -1 && errno != 0)`
62			`ptr->_errno = errno;`
63			`return ret;`
64			`}`
65
66			`/*`
67			`FUNCTION`
68			`<<_unlink_r>>---Reentrant version of unlink`
69
70			`INDEX`
71			`_unlink_r`
72
73			`ANSI_SYNOPSIS`
74			`#include <reent.h>`
75			`int _unlink_r(struct _reent <[ptr]>, const char <[file]>);`
76
77			`TRAD_SYNOPSIS`
78			`#include <reent.h>`
79			`int _unlink_r(<[ptr]>, <[file]>)`
80			`struct _reent *<[ptr]>;`
81			`char *<[file]>;`
82
83			`DESCRIPTION`
84			`This is a reentrant version of <<unlink>>. It`
85			`takes a pointer to the global data block, which holds`
86			`<<errno>>.`
87			`*/`
88
89			`int`
90			`_unlink_r (ptr, file)`
91			`struct _reent *ptr;`
92			`_CONST char *file;`
93			`{`
94			`int ret;`
95
96			`errno = 0;`
97			`if ((ret = _unlink (file)) == -1 && errno != 0)`
98			`ptr->_errno = errno;`
99			`return ret;`
100			`}`
101
102			`#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */`

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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [reent/] [linkr.c] - Blame information for rev 1774